Winnebago County, WI — 2026 Building Permit Guide

On this page 6

§ 01

Permit authority

Winnebago County Planning and Zoning

Street address

112 Otter Ave, 3rd Floor, Oshkosh, WI 54903

Phone

920-232-3344

zoningdepartment@winnebagocountywi.gov

Coverage

Winnebago County is not a single countywide building department for all unincorporated land. County Planning and Zoning issues county zoning permits, sanitary permits, and erosion control permits in the towns of Algoma, Neenah, Nekimi, and Omro, and also regulates rural shoreland areas countywide. In the towns with town zoning, the town issues zoning permits and the county still handles shoreland, sanitary, and some county land-use approvals.

Online portal

CivicPlus applications page with downloadable forms

Website

Department website

§ 02

When a permit is required

Permit triggers and exempt work for Winnebago County

County permits are required for county zoning, sanitary, stormwater, erosion control, temporary use, and rural shoreland regulated work. The county zoning FAQ states incorporated areas issue their own permits and county zoning towns are Algoma, Neenah, Nekimi, and Omro.

Scope of work

Permit?

Applicants should not assume exemption if the parcel is in shoreland, floodplain, sanitary, stormwater, or erosion-control jurisdiction.

Exempt

Exempt Applicants should not assume exemption if the parcel is in shoreland, floodplain, sanitary, stormwater, or erosion-control jurisdiction.

Note: Applicants should not assume exemption if the parcel is in shoreland, floodplain, sanitary, stormwater, or erosion-control jurisdiction.

Building code: County page states the department issues zoning, sanitary, stormwater, erosion control, and temporary use permits; it is not the unified building code authority for all unincorporated structures.
Contractor requirements: County sanitary and land-use pages do not post one unified contractor licensing rule for all permit types.

§ 03

Application process

Typical processing: Not generally posted; commercial plan and hearing matters vary by application type.

01

1. Confirm the parcel is in unincorporated Winnebago County and identify whether it is in county zoning, town zoning, or shoreland jurisdiction.
02

2. Pull the applicable county application for zoning, sanitary, erosion control, stormwater, or temporary use approval.
03

3. Submit the signed application, plans, and supporting documents to Planning and Zoning by email, mail, or in person.
04

4. Pay fees. The county states applications are not processed or reviewed until fees are paid, and card payments are accepted in person only.
05

5. If the project also needs a town, city, or village permit, obtain that local permit separately before starting work.

Typical processing time: Not generally posted; commercial plan and hearing matters vary by application type.

Source: Winnebago County Planning and Zoning ↗

§ 04

Fee schedule

Winnebago County building permit fees

Fee type

Amount

Permit fee formula

Mixed flat-fee schedule by permit and application type

Reinspection fee

Vary by permit type; confirm on the relevant application or fee sheet

County states fees must be paid before processing; debit and credit cards are accepted in person only and carry a convenience fee

Fees change periodically. Confirm at the official fee schedule ↗ before budgeting.

§ 05

Required inspections

Scheduling and sequence

Inspection hours: Monday through Friday, 8:00 AM to 4:30 PM for department hours
Time windows: Monday through Friday, 8:00 AM to 4:30 PM for department hours

Typical sequence: County land-use or sanitary approval first, then local building permit and inspections where applicable, then county closeout for county-regulated work if required

§ 06

Frequently asked

Common questions about unincorporated Winnebago County permits

01 Do I need a building permit in unincorporated Winnebago County, WI? ▸

02 How much does a building permit cost in unincorporated Winnebago County, WI? ▸

Building permit fees in unincorporated Winnebago County, WI are set by the local building department and vary by project type and valuation. Fees are calculated as: Mixed flat-fee schedule by permit and application type.

03 How do I apply for a building permit in unincorporated Winnebago County, WI? ▸

To apply for a building permit in unincorporated Winnebago County, WI, follow these steps: 1. 1. Confirm the parcel is in unincorporated Winnebago County and identify whether it is in county zoning, town zoning, or shoreland jurisdiction. 2. 2. Pull the applicable county application for zoning, sanitary, erosion control, stormwater, or temporary use approval. 3. 3. Submit the signed application, plans, and supporting documents to Planning and Zoning by email, mail, or in person. 4. 4. Pay fees. The county states applications are not processed or reviewed until fees are paid, and card payments are accepted in person only. 5. 5. If the project also needs a town, city, or village permit, obtain that local permit separately before starting work.

04 How long does it take to get a building permit in unincorporated Winnebago County, WI? ▸

Building permit processing times in unincorporated Winnebago County, WI typically run Not generally posted; commercial plan and hearing matters vary by application type.. Timelines can vary based on project complexity and current department workload.

05 What work is exempt from building permits in unincorporated Winnebago County, WI? ▸

Not all construction work requires a permit in unincorporated Winnebago County, WI. The following work is generally exempt: Applicants should not assume exemption if the parcel is in shoreland, floodplain, sanitary, stormwater, or erosion-control jurisdiction.. Note: Applicants should not assume exemption if the parcel is in shoreland, floodplain, sanitary, stormwater, or erosion-control jurisdiction. When in doubt, confirm with the local building department before starting work.

last verified April 2026 source Winnebago County Planning and Zoning ↗ entry id permits/wisconsin/winnebago/unincorporated

Report a correction

Educational reference. Permit rules and fees change — confirm current requirements directly with Winnebago County Planning and Zoning before applying. Jaspector is not legal advice.

Unincorporated Winnebago County